1、BS EN ISO 1660:2017Geometrical productspecifications (GPS) Geometrical tolerancing Profile tolerancing (ISO1660:2017)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 1660:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of
2、 EN ISO 1660:2017. It supersedes BS EN ISO 1660:1996 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee TDW/4, Technical Product Realization.A list of organizations represented on this committee can beobtained on request to its secretary.This publication d
3、oes not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 83261 1ICS 01.100.01Compliance with a British Standard cannot confer immunity fromlega
4、l obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2017.Amendments/Corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1660 February 2017 ICS 01.100.01; 17.040.40
5、 Supersedes EN ISO 1660:1995English Version Geometrical product specifications (GPS) - Geometrical tolerancing - Profile tolerancing (ISO 1660:2017) Spcification gomtrique des produits (GPS) - Tolrancement gomtrique - Tolrancement des profils (ISO 1660:2017) Geometrische Produktspezifikation (GPS) -
6、 Geometrische Tolerierung - Profiltolerierung (ISO 1660:2017) This European Standard was approved by CEN on 14 December 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard w
7、ithout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any oth
8、er language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,
9、 Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROP
10、EAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1660:2017 EBS
11、 EN ISO 1660:2017EN ISO 1660:2017 (E) 3 European foreword This document (EN ISO 1660:2017) has been prepared by Technical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification” in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical produ
12、ct specification and verification” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2017 and conflicting national standards shall be withdrawn at t
13、he latest by August 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 1660:1995. According to the
14、CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hun
15、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 1660:2017 has been approved by CEN as EN ISO 1660:2017 withou
16、t any modification. BS EN ISO 1660:2017ISO 1660:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols 25 Rules for profile tolerancing 35.1 General . 35.2 Default rules for profile tolerancing . 45.2.1 Rule A: Definition of the theoretically exact fe
17、ature (TEF) . 45.2.2 Rule B: Type of toleranced feature . 55.2.3 Rule C: Definition of the tolerance zone 55.3 Rules for profile tolerancing using additional specification elements . 75.3.1 Rule D: Toleranced feature specification elements 75.3.2 Rule E: Unequally disposed tolerance zone 85.3.3 Rule
18、 F: Linear tolerance zone offset 85.3.4 Rule G: Angular tolerance zone offset 85.3.5 Rule H: Variable tolerance zone width 85.3.6 Rule I: Filtered feature specification elements 85.3.7 Rule J: Association and parameter specification elements . 95.3.8 Rule K: Associated toleranced feature specificati
19、on elements . 95.3.9 Rule L: Non-rigid part 9Annex A (informative) Compound features 10Annex B (informative) Illustration of the rules 12Annex C (informative) Former practices .42Annex D (informative) Relation to the GPS matrix model .44Bibliography .45 ISO 2017 All rights reserved iiiContents PageB
20、S EN ISO 1660:2017ISO 1660:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body inte
21、rested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnica
22、l Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO docum
23、ents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held respons
24、ible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is information given
25、 for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Tra
26、de (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product specifications and verification.This third edition cancels and replaces the second edition (ISO 1660:1987), which has been technically
27、revised with the following changes: the requirements for defining the theoretically exact feature (the nominal geometry) have been made more explicit; the definition of what constitutes the toleranced feature has been clarified and updated to follow the feature principle, (see ISO 8015:2011, 5.5); t
28、ools for defining specifications for restricted features and compound features have been added; tools for defining specifications using unequally disposed or offset tolerance zones have been added; tools for defining specifications using tolerance zone of variable width have been added.iv ISO 2017 A
29、ll rights reservedBS EN ISO 1660:2017ISO 1660:2017(E)IntroductionThis document is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO 14638). It influences the chain links A, B and C of the chains of standards on form, orientation and location.
30、The ISO GPS Masterplan given in ISO 14638 gives an overview of the ISO GPS system of which this document is a part. The fundamental rules of ISO GPS given in ISO 8015 apply to this document and the default decision rules given in ISO 14253-1 apply to specifications made in accordance with this docum
31、ent, unless otherwise indicated.For more detailed information of the relation of this document to the GPS matrix model, see Annex D.This document provides rules for profile tolerancing.For the presentation of lettering (proportions and dimensions), see ISO 3098-2.All figures in this document for the
32、 2D drawing indications have been drawn in first-angle projection with dimensions and tolerances in millimetres. It should be understood that third-angle projection and other units of measurement could have been used equally well without prejudice to the principles established. For all figures givin
33、g specification examples in 3D, the dimensions and tolerances are the same as for the similar figures shown in 2D.The figures in this document represent either 2D drawing views or 3D axonometric views on 2D drawings and are intended to illustrate how a specification can be fully indicated with visib
34、le annotation. For possibilities of illustrating a specification, where elements of the specification may be available through a query function or other interrogation of information in the 3D CAD model and rules for attaching specifications to 3D CAD models, see ISO 16792.The figures in this documen
35、t illustrate the text and are not intended to reflect an actual application. Consequently, the figures are not fully dimensioned and specified, showing only the relevant general principles. Neither are the figures intended to imply a particular display requirement in terms of whether hidden detail,
36、tangent lines or other annotations are shown or not shown. Many figures have lines or details removed for clarity, or added or extended to assist with the illustration of the text. See Table 1 for the line types used in definition figures.In order for a GPS specification to be unambiguous, the parti
37、tion defining the boundary of the toleranced feature, as well as the filtering should be well defined. Currently, the detailed rules for partitioning and the default for filtering are not defined in GPS standards.For a definitive presentation (proportions and dimensions) of symbols for geometrical t
38、olerancing, see ISO 7083 and ISO 1101:2017, Annex F.For the purposes of this document, the terms “axis” and “median plane” are used for derived features of perfect form, and the terms “median line” and “median surface” for derived features of imperfect form. Furthermore, the following line types hav
39、e been used in the explanatory illustrations, i.e. those representing non-technical drawings for which the rules of ISO 128 (all parts) apply. ISO 2017 All rights reserved vBS EN ISO 1660:2017ISO 1660:2017(E)Table 1Feature level Feature type DetailsLine typeVisible Behind plane/ surfaceNominal featu
40、reintegral featurepoint line/axis surface/planewide continuous narrow dashedderived featurepoint line/axis surface/planenarrow long dashed dottednarrow dashed dottedReal feature integral featuresurface wide freehand continuousnarrow freehand dashedExtracted featureintegral featurepoint line surfacew
41、ide short dashed narrow short dashedderived featurepoint line surfacewide dotted narrow dottedFiltered feature integral featureline surfacecontinuous narrow continuous narrowAssociated featureintegral featurepoint straight line planewide doubled-dashed double-dottednarrow double- dashed double- dott
42、edderived featurepoint straight line (axis) planenarrow long dashed double-dottedwide dashed double-dotteddatumpoint line/axis surface/planewide long dashed double-short dashednarrow long dashed double-short dashedTolerance zone lim-its, tolerance planesline surfacecontinuous narrow narrow dashedSec
43、tion, illustration plane, drawing plane, aid planeline surfacenarrow long dashed short dashednarrow dashed short dashedExtension, dimen-sion, leader and reference lineslinecontinuous narrow narrow dashedContrary to other kinds of geometrical tolerancing, profile tolerancing also allows geometrical t
44、olerancing of non-straight lines and non-flat surfaces, in addition to simpler features, such as planes, cylinders, etc. This makes profile tolerancing more complex than other geometrical tolerancing with respect to the definition of the nominal geometry and the extent of the toleranced feature. Thi
45、s document expands on and provides tools and rules for these two complexities.This edition of ISO 1660 is a pilot project for writing rule-based standards for geometrical tolerancing rather than example-based standards. In the long term, it is envisioned that the content of this document will be int
46、egrated into a future rule-based ISO 1101.vi ISO 2017 All rights reservedBS EN ISO 1660:2017ISO 1660:2017(E)This document references other standards for rules for GPS tolerancing in general and geometrical tolerancing in particular, rather than repeating those rules. These GPS principles and rules i
47、nclude, but are not limited to: the feature principle (see ISO 8015:2011, 5.4); the independency principle (see ISO 8015:2011, 5.5); the rules for implicit TEDs (see ISO 5458:1998, 4.3); the width of the tolerance zone applies normal to the toleranced feature (See ISO 1101:2017, Clause 7); the rules
48、 for identifying the toleranced features (see ISO 1101:2017, Clause 6 and 9.1); form specifications, i.e. specifications without reference to a datum, a datum system or a pattern, constrain neither orientation nor location (see ISO 1101:2017, 4.8); the tolerance zone can be constrained by reference
49、to datums (see ISO 5459). ISO 2017 All rights reserved viiBS EN ISO 1660:2017BS EN ISO 1660:2017Geometrical product specifications (GPS) Geometrical tolerancing Profile tolerancingIMPORTANT The illustrations included in this document are intended to illustrate the text and/or to provide examples of the related technical drawing specification; these illustrations are not fully dimensioned and toleranced, showing only the relevant general principles. In particular, the illustrations do not contain filter specifications. As a consequence,
